About This Slideshow:

Before the Deepwater Horizon oil spill in 2010 in the Gulf of Mexico, there was the Exxon Valdez disaster in Alaska, at the time the nation's largest oil spill.

The 987-foot tanker, carrying 53 million gallons of crude, struck Bligh Reef at 12:04 a.m. on March 24, 1989. Within hours, it unleashed an estimated 10.8 million gallons of thick, toxic crude oil into the water. Storms and currents then smeared it over 1,300 miles of shoreline.

For a generation of people around the world, the spill was seared into their memories by images of fouled coastline in Prince William Sound, of sea otters, herring and birds soaked in oil, of workers painstakingly washing crude off the rugged beaches.

Twenty five years later, most of the species have recovered, but some wildlife, as well as the people who live in the region, are still struggling.